Problems

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Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 10620 1641 15% 0.00 2130 1123 53% 5.6
10 Kinds of People 24514 4987 20% 0.01 4251 3069 72% 5.3
2048 9982 4572 46% 0.00 4384 3765 86% 2.3
2, 4, 6, Greaaat 681 106 16% 0.15 72 36 50% 9.1
3D Printed Statues 13062 5991 46% 0.00 5586 5011 90% 2.0
3D Printer 928 154 17% 0.00 379 117 31% 8.8
3-Sided Dice 2768 222 8% 0.00 446 158 35% 8.7
4 thought 11305 3857 34% 0.00 3717 3139 84% 2.5
A1 Paper 6321 1896 30% 0.00 1871 1493 80% 3.6
Aaah! 33506 15628 47% 0.00 14005 13078 93% 1.5
Abandoned Animal 2398 529 22% 0.03 607 441 73% 5.6
ABC 17701 8075 46% 0.00 7612 6916 91% 1.7
Ab Initio 1545 274 18% 0.09 236 145 61% 7.6
Above Average 11821 4911 42% 0.00 4723 4235 90% 2.0
A+B Problem 9118 900 10% 0.03 1301 428 33% 8.3
A Brief Gerrymander 508 102 20% 0.12 93 44 47% 8.9
Abstract Art 428 139 32% 0.00 115 88 77% 5.7
Abstract Painting 868 358 41% 0.00 327 266 81% 4.0
Absurdistan Roads II 685 233 34% 0.00 230 154 67% 6.9
Absurdistan Roads III 1671 480 29% 0.02 457 346 76% 5.7
Access Points 455 159 35% 0.01 151 117 77% 5.7
Accounting 1294 381 29% 0.02 345 238 69% 5.1
A Classy Problem 11870 3113 26% 0.01 2679 2082 78% 4.2
ACM Contest Scoring 8029 5015 62% 0.00 4483 4237 95% 1.4
Add 'Em Up! 2080 509 24% 0.01 526 384 73% 4.8
Adding Words 13196 3252 25% 0.00 3081 2414 78% 3.5
A Different List Game 7422 513 7% 0.00 963 186 19% 9.3
A Different Problem 38160 14114 37% 0.00 12888 11178 87% 2.2
Adjoin the Networks 2376 631 27% 0.00 535 428 80% 5.5
Administrative Difficulties 1603 314 20% 0.03 337 231 69% 6.2
Ads 792 73 9% 0.00 137 49 36% 6.0
Advanced Causal Measurements 125 39 31% 0.10 38 30 79% 7.4
Adventure Begins 306 95 31% 0.06 101 76 75% 5.7
Adventures in Moving -- Part IV 1705 379 22% 0.00 323 269 83% 4.6
A Favourable Ending 1874 510 27% 0.00 476 372 78% 4.4
A Feast For Cats 3068 1161 38% 0.00 827 708 86% 3.9
A Flea on a Chessboard 905 179 20% 0.01 189 131 69% 5.4
A Horse Shoe-In 106 9 8% 0.45 15 8 53% 8.6
AI Jeopardy 465 53 11% 0.02 59 39 66% 7.3
Air Conditioned Minions 6333 1842 29% 0.00 1905 1462 77% 3.9
Airline Hub 2283 504 22% 0.01 441 264 60% 6.6
Airport Coffee 1194 254 21% 0.04 241 170 71% 6.8
Airport Construction 3613 461 13% 0.02 392 210 54% 7.6
Airport Logistics 69 17 25% 0.00 24 17 71% 6.9
Airports 551 163 30% 0.11 148 106 72% 6.1
Akcija 9050 4123 46% 0.00 3718 3330 90% 1.8
Aladin 812 79 10% 0.10 133 30 23% 8.6
Alchemy 171 33 19% 0.02 42 23 55% 8.9
Alchemy 101 396 120 30% 0.05 119 94 79% 3.8
Alea iacta est 45 16 36% 0.19 20 15 75% 6.6
Alehouse 737 289 39% 0.02 265 204 77% 4.7
Alex and Barb 927 319 34% 0.00 365 285 78% 3.3
Alice in the Digital World 5744 1419 25% 0.01 1292 1019 79% 3.9
Alien Codebreaking 274 16 6% 3.23 48 13 27% 8.9
Alien Numbers 2798 1465 52% 0.00 1433 1311 91% 1.9
A List Game 10206 3102 30% 0.00 2965 2520 85% 2.5
All about that base 3196 1267 40% 0.00 1220 1034 85% 2.9
All Different Directions 1611 737 46% 0.00 698 622 89% 2.5
Allergy Test 627 156 25% 0.00 200 97 48% 8.0
All Friends 1124 212 19% 0.00 197 104 53% 8.8
All is Well 121 34 28% 0.03 32 27 84% 6.1
All Just A Dream 2570 661 26% 0.05 492 379 77% 5.3
All Kill 62 49 79% 0.00 38 32 84% 4.2
Alloys 645 230 36% 0.00 234 198 85% 3.8
All Pairs Shortest Path 12818 2414 19% 0.00 1522 1097 72% 5.4
Almost Perfect 11164 2536 23% 0.00 2634 2090 79% 3.3
Almost Union-Find 9483 1625 17% 0.02 1479 878 59% 6.2
Alphabet 2362 1204 51% 0.00 1139 969 85% 3.0
Alphabet Animals 3256 957 29% 0.00 899 735 82% 3.3
Alphabet Spam 9915 6165 62% 0.00 5170 4973 96% 1.3
Alternating Current 648 632 98% 0.00 106 104 98% 1.3 - 7.8
Alternative Anagram 238 78 33% 0.00 66 52 79% 6.5
Alternative Bracket Notation 216 93 43% 0.00 100 83 83% 5.0
Altruistic Amphibians 512 135 26% 0.22 113 84 74% 5.3
Amalgamated Artichokes 4790 2142 45% 0.01 1893 1669 88% 2.5
Amanda Lounges 1778 536 30% 0.03 451 368 82% 5.2
A Mazing! 3667 995 27% 0.09 370 279 75% 5.4
Amazing Adventures 416 121 29% 0.02 134 97 72% 6.2
Amazing Race 403 104 26% 0.29 107 76 71% 7.3
Ambiguous Result 274 62 23% 0.02 94 59 63% 7.6
Amsterdam Distance 2140 1056 49% 0.00 1072 917 86% 2.5
A Multiplication Game 1134 460 41% 0.00 490 381 78% 4.1
Anagram Counting 4450 1767 40% 0.00 1715 1443 84% 2.8
Andrew the Ant 435 134 31% 0.05 140 108 77% 4.9
A New Adventure 1316 199 15% 0.00 206 146 71% 5.8
A New Alphabet 12904 5822 45% 0.00 5416 5006 92% 1.7
An I for an Eye 1034 307 30% 0.00 349 265 76% 4.5
Animal Classification 1654 384 23% 0.03 326 219 67% 6.8
An Industrial Spy 2082 1144 55% 0.02 889 781 88% 2.8
Annoyed Coworkers 70 16 23% 0.04 14 13 93% 4.8
Another Brick in the Wall 3955 2005 51% 0.00 1951 1785 91% 1.9
Another Candies 9392 2603 28% 0.00 2654 2218 84% 2.5
Another Coin Weighing Puzzle 487 143 29% 0.00 118 101 86% 4.9
Another Dice Game 117 76 65% 0.00 74 64 86% 4.2
Another Query on Array Problem 1840 231 13% 0.05 370 164 44% 7.9
Antenna Placement 180 75 42% 0.00 62 46 74% 7.1
Anthony and Cora 1063 291 27% 0.00 335 229 68% 5.7
Anthony and Diablo 4042 1479 37% 0.00 1493 1301 87% 2.4
Antiarithmetic? 2034 387 19% 0.01 442 253 57% 7.5
Ants 4532 2056 45% 0.00 1682 1474 88% 2.5